Hallows Gumor

Spoiler Alert

Well she tied up all the important lose ends. And the series is over. About the only thing we have left to look forward to is the inevitable cartoon show about little Albus Severus Potter and his friends. The situation with Snape worked out more or less as I expected. The final moments were perfectly orchestrated.

So I have one question left. What happens when Griphook the goblin finds out that the sword of Gryffindor is missing because Neville pulled it out of the sorting hat? Did Neville or Harry return it later? Or is it just one more cause of bad blood between the wizards and the goblins?